4. Peter finished his assignment two days ago.
⇒His assignment was finished by peter for two ago.
5. The teacher is introducing a new game now.
⇒A new game is being introducing by the teacher now.
6. The Prime Minister is making a speech at the moment.
⇒Making a speech is being making by The Prime Minister at the momnet.
7. Her father was planting different kinds of flowers in the garden
⇒Different kinds of flowers was being planitng by her father in the garden.
8. They have used these machines for five years.
⇒These machines have been used by us for five years.
9. They have just sold that old house.
⇒That old house have just been sold.
10. The teacher will correct exercises next week.
⇒Exercises will be corrected by the teacher next week.
11. You should complete this form in black ink.
⇒This form should completed in black ink.
12. No one can solve that problem.
⇒This problem can't be sloved